ARTi

The human immune system

Chapter 1

First contact and the cellular border patrol

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Chapter 2

The specialized forces of adaptive memory

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Chapter 3

The ancient global quest to train our defenses

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Chapter 4

When defenses misfire or overreact

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YOUR GOAL

Master of The human immune system

Ch 1 · First contact and the cellular border patrol
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artiteacher Macrophages and the cellular garbage disposals

Jul 11

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artiteacher Innate immunity and the rapid response team

Jul 11

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artiteacher The fortress of skin and chemical shields

Jul 11

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artiteacher Neutrophils and their explosive self-sacrificing traps

Jul 11

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artiteacher Neutrophil Extracellular Traps

Caught in the net, caught in the net, My DNA's got you now.

Jul 10

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Macrophages and the cellular garbage disposals

artiteacher Macrophages and the cellular garbage disposals

Jul 10

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Fun Fact

Innate defense speed: Your innate immune system responds to an injury or infection so fast that inflammation begins within seconds of the tissue being damaged.

Jul 10

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Innate immunity and the rapid response team

artiteacher Innate immunity and the rapid response team

Jul 10

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Glossary
macrophage (noun)
A large white blood cell that engulfs and digests cellular debris, foreign substances, and microbes. These cells patrol human tissues, engulfing foreign pathogens immediately after they breach the skin barrier.

Jul 10

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Quiz

What does the name of the immune cell "macrophage" literally mean in Greek?

Jul 10

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Gossip

If you could boost one physical barrier, which would you pick?

Jul 10

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Quiz

What percentage of human white blood cells are typically neutrophils?

Jul 10

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Quiz

Which part of the brain controls body temperature and triggers a fever during an infection?

Jul 10

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Quiz

Which enzyme found in human tears and saliva actively destroys bacterial cell walls?

Jul 10

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Quiz

How does a fever help the body fight off bacterial infections?

Jul 10

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Quiz

How many dead skin cells does a human typically shed every minute to help clear away microbes?

Jul 10

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Quiz

What is the highly acidic pH range of human stomach acid that dissolves most ingested bacteria?

Jul 10

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Quiz

What sticky material do dying neutrophils explode to cast as a trap for bacteria?

Jul 10

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Warm Body Buddies

artiteacher Warm Body Buddies

Jul 7